High radiation, global blackouts, and a planet turning into Mars

Описание: If Earth's magnetic field disappeared, the consequences would be catastrophic and far-reaching, transforming the planet into a hostile and barely recognizable world. Without this protective magnetosphere, Earth would be vulnerable to the full force of the solar wind and cosmic rays, leading to atmospheric stripping, a surge in radiation, and the collapse of our technological infrastructure. The overall effect would be a slow, planet-wide extinction event.

What happens when Earth's magnetic field disappears?

Atmosphere is stripped away.

The magnetosphere shields our atmosphere, particularly the ozone layer, from the solar wind—a constant stream of charged particles from the sun. Without it, the solar wind would gradually strip away the upper atmosphere and cause the oceans to boil off over millions of years, turning Earth into a barren wasteland similar to Mars.
Radiation levels skyrocket. With the magnetic shield gone, cosmic rays and other harmful radiation would bombard the planet's surface. This would drastically increase global cancer rates and radiation sickness for all living things. Astronauts on lunar missions have even reported seeing flashes of light caused by cosmic rays passing through their retinas.

Technology fails spectacularly. The high-energy particles from the solar wind would overload our electronics. Power grids would collapse, satellites would be damaged or destroyed, and the internet, GPS, and communication networks would cease to function. The event could be similar to the 1989 solar flare that knocked out power in Quebec, but on a global and permanent scale.

The aurora appears everywhere (at first). For a short time, auroras would not be confined to the poles but would be visible across the globe as the solar wind interacted with our exposed upper atmosphere. As the atmosphere thins, however, the spectacular light shows would fade away forever.

Navigational systems become useless. Compasses would stop working, and many animals that rely on magnetoreception for migration—such as birds, sea turtles, and honeybees—would lose their ability to navigate. This would threaten biodiversity and disrupt ecosystems worldwide.

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